GNUNET-SEARCH(1)					      General Commands Manual						  GNUNET-SEARCH(1)

NAME

       gnunet-search - a command line interface to search for content on GNUnet

SYNOPSIS

       gnunet-search [OPTIONS] [+]KEYWORD [[+]KEYWORD]*

       gnunet-search [OPTIONS] [+]URI

DESCRIPTION

       Search for content on GNUnet. The keywords are case-sensitive.  gnunet-search can be used both for a search in the global namespace as well
       as for searching a private subspace.

       -a LEVEL, --anonymity=LEVEL

	      The -a option can be used to specify additional anonymity constraints. If set to 0, GNUnet will try to download the file as fast	as
	      possible,  including  using  non-anonymous  methods.  If you set it to 1 (default), you use the standard anonymous routing algorithm
	      (which does not explicitly leak your identity).  However, a powerful adversary may still be able to perform traffic  analysis  (sta-
	      tistics)	to over time infer data about your identity.  You can gain better privacy by specifying a higher level of anonymity, which
	      increases the amount of cover traffic your own traffic will get, at the expense of performance.  Note that your download performance
	      is  not  only  determined by your own anonymity level, but also by the anonymity level of the peers publishing the file.	So even if
	      you download with anonymity level 0, the peers publishing the data might be sharing with a higher anonymity  level,  which  in  this
	      case will determine performance.	Also, peers that cache content in the network always use anonymity level 1.

	      This  option  can  be  used to limit requests further than that. In particular, you can require GNUnet to receive certain amounts of
	      traffic from other peers before sending your queries. This way, you can gain very high levels of anonymity - at the expense of  much
	      more traffic and much higher latency. So set it only if you really believe you need it.

	      The  definition of ANONYMITY-RECEIVE is the following.  0 means no anonymity is required.  Otherwise a value of 'v' means that 1 out
	      of v bytes of "anonymous" traffic can be from the local user, leaving 'v-1' bytes of cover traffic per byte on the wire.	 Thus,	if
	      GNUnet  routes  n  bytes	of messages from foreign peers (using anonymous routing), it may originate n/(v-1) bytes of queries in the
	      same time-period. The time-period is twice the average delay that GNUnet defers forwarded queries.

	      The default is 1 and this should be fine for most users.	Also notice that if you choose very large values, you may end up having no
	      throughput at all, especially if many of your fellow GNUnet-peers all do the same.

       -c FILENAME, --config=FILENAME
	      use config file (defaults: ~/.gnunet/gnunet.conf)

       -h, --help
	      print help page

       -L LOGLEVEL, --loglevel=LOGLEVEL
	      Change the loglevel.  Possible values for LOGLEVEL are ERROR, WARNING, INFO and DEBUG.

       -o FILENAME, --output=FILENAME
	      Writes a GNUnet directory containing all of the search results to FILENAME.

       -n, --no-network
	      Only search locally, do not forward requests to other peers.

       -N VALUE, --results=VALUE
	      automatically terminate the search after receiving VALUE results.

       -t VALUE, --timeout=VALUE
	      Automatically timeout search after VALUE ms.  Otherwise the search runs until gnunet-search is aborted with CTRL-C.

       -v, --version
	      print the version number

       -V, --verbose
	      print meta data from search results as well

NOTES

       You  can  run  gnunet-search with an URI instead of a keyword.  The URI can have the format for a namespace search or for a keyword search.
       For a namespace search, the format is gnunet://fs/sks/NAMESPACE/IDENTIFIER.  For a keyword search, use  gnunet://fs/ksk/KEYWORD[+KEYWORD]*.
       If the format does not correspond to a GNUnet URI, GNUnet will automatically assume that keywords are supplied directly.

       If  multiple  keywords are passed, gnunet-search will look for content matching any of the keywords.  The prefix "+" makes a keyword manda-
       tory.

       # gnunet-search "Das Kapital"

       searches for content matching the keyword "Das Kapital".  Whereas

       # gnunet-search +Das +Kapital

       Searches for content matching both mandatory keywords "Das" and "Kapital".

       Search results are printed by gnunet-search like this:

	    gnunet-download -o "COPYING" gnunet://fs/chk/HASH1.HASH2.SIZE

		 Description: The GNU Public License

		 Mime-type: text/plain

       The first line contains the command to run to download the file.  The suggested filename in the example is COPYING.  The  GNUnet  URI  con-
       sists  of  the  key  and query hash of the file and finally the size of the file.  After the command to download the file GNUnet will print
       meta-data about the file as advertised in the search result, here "The  GNU  Public  License"  and  the	mime-type  (see  the  options  for
       gnunet-publish on how to supply meta-data by hand).

FILES

       ~/.gnunet/gnunet.conf
	      GNUnet configuration file; specifies the default value for the timeout

REPORTING BUGS

       Report bugs to <https://gnunet.org/bugs/> or by sending electronic mail to <gnunet-developers@gnu.org>

SEE ALSO

       gnunet-fs-gtk(1), gnunet-publish(1), gnunet-download(1), gnunet-pseudonym(1), gnunet.conf(5),

GNUnet								    25 Feb 2012 						  GNUNET-SEARCH(1)